11 ideas
| 15547 | Negative existentials have 'totality facts' as truthmakers [Armstrong, by Lewis] |
| 8983 | If 'red' is vague, then membership of the set of red things is vague, so there is no set of red things [Sainsbury] |
| 8986 | We should abandon classifying by pigeon-holes, and classify around paradigms [Sainsbury] |
| 8982 | Vague concepts are concepts without boundaries [Sainsbury] |
| 8984 | If concepts are vague, people avoid boundaries, can't spot them, and don't want them [Sainsbury] |
| 8985 | Boundaryless concepts tend to come in pairs, such as child/adult, hot/cold [Sainsbury] |
| 12177 | Human artefacts may have essences, in their purposes [Popper] |
| 15542 | All possibilities are recombinations of properties in the actual world [Armstrong, by Lewis] |
| 12176 | Science does not aim at ultimate explanations [Popper] |
| 12175 | Galilean science aimed at true essences, as the ultimate explanations [Popper] |
| 12179 | Essentialist views of science prevent further questions from being raised [Popper] |